How does the Brain Work?
Different parts of our brain control different parts of our body.
Click on the names of the different areas for more info)
One part is in charge of understanding what the eyes see; another part
directs; a different part controls; still another exercises. The left
side of the brain controls on the right side of the body and receives
sensation from the right side of the body, and vice versa.
Evidence suggests that the brains' left hemisphere tends to deal with
reasoning and communication and the right hemisphere with emotions and
perception of shapes. All the parts of the brain do their work and talk
to each other over a network of nerve cells called neurons.
The brain works on electricity
The normal brain is constantly generating electrical rhythms in an
orderly way. Millions of tiny electrical charges pass between a network
of nerve cells in the brain and to all parts of the body via chemical
messengers called neurotransmitters, which cause the nerve cells to
fire or stop firing. In simple terms, the nerve cells, called neurons,
are the brain's telephone system, sending electric charges from one
point to another. Normal human experiences occur when specialized parts
of the brain responsible for taste, smell, movement, memory etc. are
sufficiently excited. This is how we think, feel and move.
Move your finger now. When you do so, muscle fibres on each side of
your finger joint are involved. Different groups of brain cells control
the different muscle fibres, and their coordinated firing is what
allows you to manipulate your finger smoothly.
